US PATENT SUBCLASS 123 / 41.35
.~.~ Piston

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


123 /   HD   INTERNAL-COMBUSTION ENGINES

41.01  DF  COOLING {27}
41.34  DF  .~ Internal cooling of moving parts; e.g., hollow valves, pistons, and movable cylinder {3}
41.35.~.~ Piston {3}
41.36  DF  .~.~.~> Telescoping piston and stationary conduits
41.37  DF  .~.~.~> Hollow piston rod {1}
41.39  DF  .~.~.~> Side wall opening

DEFINITION

Classification: 123/41.35

(under subclass 41.34) Cooling means wherein the element cooled is a piston.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

173, for a piston having an enclosed insulating space therein; subclass 186 for a piston having a ported chamber therein for circulating heat exchange fluid; subclass 239 for a piston provided with heat radiating rib means.